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Finding the Fourth Proportional to 1,101.99, 1,652.63 and 1,029.20

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Solution

The fourth proportional to 1,101.99, 1,652.63 and 1,029.20 is: 1,543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101.99 : 1,652.63 = 1,029.20 : x
  2. Step 2: Convert to fraction form
    1,101.99/1,652.63 = 1,029.20/x
  3. Step 3: Cross multiply
    1,101.99x = 1,652.63 × 1,029.20
  4. Step 4: Simplify right side
    1,101.99x = 1,700,873.39
  5. Step 5: Solve for x
    x = 1,700,873.39/1,101.99
  6. Step 6: Final answer
    x = 1,543.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.